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uk-property-mcp: Instructions file for Codex

AGENTS.md

uk-property-mcp AGENTS.md is an instructions file for Codex, OpenCode from paulieb89/uk-property-mcp. It costs 459 tokens per session, scanned A, original, MIT.

An instruction guide for connecting to a UK property data service with tools for sales, rental, energy, planning, tax, and company information.

In plain words
What is it for?
Use it to look up comparable sales, transactions, energy certificates, rental yields, Rightmove listings, stamp duty, planning applications, block-buy opportunities, and Companies House data.
Why use it?
It tells an agent which property tool to use and what information each one needs, reducing guesswork when researching a UK property.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is paulieb89/uk-property-mcp's own configuration. It tells Codex and OpenCode how to work on uk-property-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything uk-property-mcp configures →

not rated 2repo 3mo ago A scan 459 tokens original MIT
View source ↗ paulieb89/uk-property-mcp
Reuse

Borrowing it

Nothing to install: this file belongs to paulieb89/uk-property-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/paulieb89/uk-property-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/paulieb89/uk-property-mcp

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

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README.md
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Per session 459 This file is loaded in full into every session.
When invoked 459 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00459 $0.00459
Opus 5.5 $0.00184 $0.00184
Sonnet 5.5 $0.00092 $0.00092
Haiku 4.5 $0.00046 $0.00046

Measured 2mo ago against content hash 06470aa1f8d3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

uk-property-mcp AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 37 lines

What it actually says

uk-property-mcp — Agent Usage Guide

UK property data MCP server. 13 tools covering Land Registry, EPC, Rightmove, rental yields, stamp duty, and Companies House.

Connection

Hosted: https://uk-property-mcp.fly.dev/mcp Local: uvx uk-property-mcp

Available Tools

  • property_report — full data pull (comps + EPC + yield + market) for a street address + postcode; use this first when you have both
  • property_comps — Land Registry comparable sales with EPC-enriched price/sqft; postcode only
  • ppd_transactions — transaction search by postcode, address, date range, or price
  • property_yield — gross rental yield from PPD sales + Rightmove rentals
  • rental_analysis — rental market stats; pass purchase price for yield calculation
  • property_epc — EPC certificate lookup; needs street address for exact match
  • rightmove_search — Rightmove listings for sale or rent
  • rightmove_listing — full detail for a specific Rightmove listing by URL or ID
  • property_blocks — block-buy opportunities (buildings with multiple flat sales)
  • stamp_duty — SDLT calculator with all surcharges (additional dwelling, non-resident)
  • planning_search — local council planning portal URL for a postcode
  • company_search — Companies House search by company name
  • company_profile — full Companies House record by company number

Usage Tips

  • Use property_report when you have both a street address and postcode — it combines comps, EPC, and yield in one call
  • For postcode-only queries, call property_comps and property_yield separately
  • property_epc needs a street address (not just postcode) for an exact certificate match
  • company_search → company_profile for any landlord/developer research
  • COMPANIES_HOUSE_API_KEY is required for the company_* tools; EPC key is optional

Agent Skills

Routing skills for property reports and deal sourcing are in .agents/skills/.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 37 lines · 459 tokens per session scan A 06470aa1f8d3

Subscribe to this mod's changes

uk-property-mcp AGENTS.md is an instructions file published in the GitHub repository paulieb89/uk-property-mcp (2 stars, last pushed 3mo ago), licensed MIT. It adds 459 tokens to every session, about $0.0018 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Research
Related

uk-property-mcp AGENTS.md compared with instructions from other repositories

uk-property-mcp AGENTS.md next to 6 instructions from other repositories
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deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode